Format all sources with Uncrustify

Formatted all sources and manually tuned some files to make the code look
neater.

maxscale-system-test/bug711.cpp

@@ -1,6 +1,6 @@
 /**
  * @file bug711.cpp bug711 regression case (Some MySQL Workbench Management actions hang with R/W split
- *router)
+ * router)
  * - configure rwsplit with use_sql_variables_in=all
  * - try SHOW GLOBAL STATUS with all maxscales->routers[0]
  * - check if Maxscale is still alive